Liner for centrifugal creamers.



No. 635,780. Patented Oct. 3|, I899. S. E. JARVIS.

LINER FOR CENTRIFUGAL CREAMERS.

(Applicatioia filed Sept. 17, 1898.) (No Model.) 2 Sheets-SheetWITNESSES INVENTOR azMzf/ m 1.6. MM 1 QQUJWL Allamey w: Norms PEYERS co,mo'ruuma, WASNINGTON, n. c.

N0, 635,780. Patentedocf. 3|, I899.

S E JARVIS LINER FOR CENTRIFUGAL CREAMERS.

(Application filed Sept. 17, 1898.)

2 Sheets-Sheet 2.

(No Model.)

A Harm INVENTOR 6. 5 Q Q 71%! mn L. l m N r m Wl MNMW- I w w W W W WSAMUEL ERLER JARVIS, OF LANSING, MICHIGAN.

LINER FOR CENTRIFUGAL CREAMERS.

$PECIFICATION forming part of Letters Patent No. 635,780, dated October31, 1899- Application filed September 17, 1898. Serial No. 691,267- (Nomodel.)

T0 66 whom it may concern:

Be it known that I, SAMUEL ERLER J ARvIs,a citizen of the United States,residing at Lansing, in the county of Ingham and State of Michigan, haveinvented a newand useful Im provement in Milksteadying Devices forCentrifugal Cream-Separators, of which the following is a specification.

My improvement relates to devices which are placed in the revolvingbowls of centrifugal separators for the purpose of holding the milksteady and free from circulatory currents, which tend to mix the creamand milk together, and thus facilitating the rapid and efficientseparation of the'cream from the milk.

The objects of myinvention are to provide a simple cheap device whichshall operate rapidly, perfectly, and uniformly, that will not clog bythe accumulation of cream, and that will be more easy to clean after usethan the ordinary styles of separating devices. I attain these objectsby the mechanism illustrated in the accompanying drawings, in which-Figure l is a side elevation of the steadying device complete. Fig. 2 isa perspective view of one of the plates. Fig. 3 is a plan of thesteadying device with core. Fig. 4 is a plan of a triangular plate.Figs. 5, 6, and 7 are perspective views of modifications. Fig. 8 is aside elevation of a steadying device shown in a section of a bowl X,said bowl forming no part of the present invention.

Similar letters refer to similar parts throughout the several views.

Referring to the drawings, Fig. 1 shows the complete device, which iscomposed of numerous horizontal plates A, of thin metal, circular,angular, or polygonal in form. The plates A are bent or turned at theedges, as indicated, preferably at about a right angle, so as to produceteeth, ribs, walls, or flanges B, said teeth, ribs, or walls extendingin a direction generally transverse to the radii of the plates. Theplates are superposed, so that one plate rests against the teeth or ribsof the next plate, and the ribs or teeth alternate, as indicated inFig. 1. Between the teeth or ribs A there are spaces or notches I. Whenarranged as indicated in Fig. 1,

with the plates A horizontal, there are narrow flat spaces or chambersbetween the bodies of plates A, said spaces or chambers being partlyclosed at the outer edges by the flanges or walls B. The platesalternate, so that the downturned edges or flanges of one plate lie nextto the projecting angle of the next plate above or below.

In some forms of the device the plates may have walls or flanges Hextending from their faces in lines tangent to the radii of the plates.Each plate has a large central opening D, and when the plates areassembled the openings are superposed in alinement. Each platepreferably has holes E at opposite sides of the opening D, and bolts 0,passing through all the holes, hold all the plates together, so that theteethor flanges B H extend about in vertical direction when the platesare horizontal, there being narrow spaces between the plates caused bythe edges of the teeth B H resting against the face of the next plate.

The device is inclosed in the bowl of a centrifugal machine, the extremediameter of the steadying device being a little less than the interiordiameter of such bowl. The openings D then form the cream-pool at thecenter of the bowl. The teeth or guide-walls B and H have two mainobjectsfirst, to catch the particles of cream in their upward passageand direct them toward the creampool in the center; second, to separatebetween the inflowing cream particles and the outflowing milk particlesin a manner to be more fully explained hereinafter. They alsoincidentally serve to keep the plates at a fixed distance from eachother and to compel the milk to move in every part with the samevelocity as the bowl, which in connection with the thin layers intowhich the milk is divided by the numerous plates brings about thatabsolute quiet and freedom from circulatory currents which is essentialto eficient and rapid separation. The opening D is circular. Thesuccession of these openings when the plates are placed one upon theother forms a cream-pool, in which is preferably placed acream-steadying core composed of vanes K, surrounding a central ring ortube L, but which may be of any approved design. If desired, slightnotches may be cut in the plates A, as shown at M, and the vanes K beingmade wide enough to fitinto these notches will take the place of thebolts 0.

The separate plates may be held in position with reference to each otherin the manner hereinbefore specified or by bolts 0. If the bolts areused, they are preferably fastened into the lowest plate G and passthrough holes E in the several plates, being secured by nuts F or othersuitable means at the top. The plates are preferably so placed withreference to each other that the notches P in the marginal guidewalls ofeach plate will alternate with those of the adjoining plate, as shown inFigs. 1 and 3, and are mounted one upon the other in the manner shown inFig. 1.- viz., with the projecting guide-walls downward, so as to reston the flat surface of the plate nextbelowbut may be slightly separatedfrom each other, if desired.

In using my invention the milk is admitted to the bowl in the usualmanner below the bottom plate and passes upward and outward into themarginal space until the bowl is filled with milk. The separatingprocess then begins. The heavier milk particles are driven by thecentrifugal force directly outward from the center in radial lines untilthey strike the inner side of one of the guide-walls B or H. The currentof milk then moves along this guide-wall until it finally escapesthrough the notches- P into the skim-milk space between the plates andthe margin of the bowl. In the same manner the cream particles, beinglighter, move toward the center of the device in radial lines, and thuscome in contact with the outside of one of the guidewalls B, when theypass upward and inward over these walls into the space between two ofthe plates. Then passing inward they strike the guide-walls H also onthe outer side and move along them, finally escaping into the cream-poolin the center, the guidewalls serving to keep the inflowing andoutflowing particles separate. A partial separation of the cream fromthe milk is thus produced. After escaping from the first plate thepartially-separated milk and cream pass upward and are caught by theguide-walls B of the next plate in the series. This process is repeatedby each successive plate, and an extremely rapid and effectiveseparation is thus produced. The perfectly-separated milk and creamfinally escape from the bowl by separate passages in the usual manner,and the process may be continued indefinitely.

The terms walls, teeth, ribs, or flanges as used in this specificationand applied to the parts B or H of plates A are intended to describethose portions of the plates which in the completed device do not 'formparts of the flat bodies of the plates, but are projections or pendantsfrom the plates, in the case of the parts or projections B being at theouter edges of the flat body portions of the plates and in case of partsor projections H being inside the outer edges of the plates.

WVhat I claim, and desire to secure by Letters Patent, is-

l. A milk-steadying device for centrifugal machines consistingessentially of a series of fiat metallic plates having central openingsforming a cream pool, each plate having flanges at its edges extendingin substantially vertical direction and transverse to the radii of theplate, the plates being held apart by these flanges and connectedtogether by suitable mechanism, substantially as described.

2. A milk-steadying device for centrifugal machines consisting of aseries of thin metallic plates having flanges turned at the edges saidflanges supporting the adjacent plate, said plates having openingsforming a central cream-pool, and connected by bolts passing throughholes in the flat plates, substantially as described.

A milk-steadying device consisting essentially of a series of thinmetallic plates with edge flanges turned out of the plane of the plate,the angles of one plate projecting radially beyond the downturnedflanges of the next plate, and means for holding the plates together inseries, substantially as described.

4. A milk-steadying device for centrifugal machines, consistingessentially of a series of flat metallic plates with flanged edges andwith projections inside the edges extending in direction transverse tothe radii of the plates, there being passages between such projectionsand means for holding the plates together, substantially as described.

5. A milk-steadying device consisting essentially of a series of flatmetallic plates each having a central opening and a number of flanges atits periphery, substantially as described, means for holding theseplates together as described, and cross-vanes dividing the chamberformed by the central openings in the plates, substantially asdescribed.

SAMUEL ERL ER JARVIS.

